145343-57-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 145343-57-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,5,3,4 and 3 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 145343-57:
(8*1)+(7*4)+(6*5)+(5*3)+(4*4)+(3*3)+(2*5)+(1*7)=123
123 % 10 = 3
So 145343-57-3 is a valid CAS Registry Number.
145343-57-3Relevant articles and documents
An Expedient Synthesis of α-Fluoro-α,β-Unsaturated Diesters
Tsai, Hou-Jen,Thenappan, Alagappan,Burton, Donald J.
, p. 6579 - 6582 (1992)
Acylation of -Li+ (2) with alkyloxalyl chlorides followed by subsequent reaction of the acylated phosphonates with Grignard reagents provides the title compounds in moderate to good yields with high E-stereoselectivity.
